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Now showing items 1-10 of 151

#### Strategies for the evolution of sex

(American Institute of Physics Inc., 2001-12)

The maintenance of a macroscopic sexual population is addressed. As a scenario, the mechanism of random conversion to sex, in the presence of a constant rate of mutation is examined. This scenario is very closely related ...

#### A mean field model near the NAC point in liquid crystals

(Physical Soc Republic China, 2002-10)

In this study we obtain the phase line equations for the nematic-smectic A (NA), smectic A-smectic C (AC) and nematic-smectic C (NC) transitions using a mean field model. We fit these phase line equations to the experimental ...

#### A phase diagram near the NAC point in liquid crystals

(Elsevier Science SA, 2002-07-28)

In this study using a mean field model we obtain the phase line equations for the NA. NC and AC transitions near the NAC point in a mixture of liquid crystals. We then fit these phase line equations to the experimental ...

#### P-T phase diagram for NH₄F

(Editions Scientifiques Medicales Elsevier, 2002-04)

In this study we obtain a P-T phase diagram of NH4F using the mean-field theory. We fit our calculated phase line equations to the experimental P-T phase diagram. By choosing appropriately the coefficients in the free-energy ...

#### T-P phase diagram of ammonia solid phases I, II and III

(Elsevier Science, 2002-01-02)

In this study, using the mean field theory, we obtain temperature versus pressure phase diagram for the liquid and solid phases I, II, and III of ammonia. We fit, our phase line equations to the experimentally observed ...

#### Testing a hypothesis for the evolution of sex

(World Scientific Publishing Company, 2000-07-11)

An asexual set of primitive bacteria is simulated with a lit-string Penna model with a Fermi function for survival. A recent hypothesis by Jan, Stauffer, and Moseley on the evolution of sex from asexual cells as a strategy ...

#### Dissipative dynamics and the statistics of energy states of a Hookean model for protein folding

(Kluwer Academic Publishers-Plenum Publishers, 2000-07)

A generic model of a random polypeptide chain, with discrete torsional degrees of freedom and Hookean spring connecting pails or hydrophobic residues, reproduces the energy probability distribution of real proteins over a ...

#### Calculation of the T-X phase diagram for a mixture of liquid crystals

(Pergamon-Elsevier Science, 2000-12)

In this study we calculate the T-X phase diagram for a mixture of liquid crystals. In this calculation we use a mean field theory We fit our calculated phase line equations to the experimental data from the literature. ...

#### Strategies for the evolution of sex

(American Physical Soc, One Physics Ellipse, 2001-12)

We find that the hypothesis made by Jan, Stauffer, and Moseley [Theory Biosci. 119, 166 (2000)] for the evolution of sex, namely, a strategy devised to escape extinction due to too many deleterious mutations, is sufficient ...

#### Normal forms and nonlocal chaotic behavior in Sprott systems

(Pergamon-Elsevier Science, 2003-06)

The Sprott systems are used as benchmarks for investigating the applicability of the normal form transformation in estimating nonlocal properties of attractors such as positive and zero Liapunov exponents. Possibility of ...